Global Patent Index - EP 2878843 B1

EP 2878843 B1 20200603 - CONICAL SURFACE FRICTION TYPE OVERRUNNING CLUTCH

Title (en)

CONICAL SURFACE FRICTION TYPE OVERRUNNING CLUTCH

Title (de)

FREILAUFKUPPLUNG MIT KONISCHER OBERFLÄCHENREIBUNG

Title (fr)

EMBRAYAGE À ROUE LIBRE DU TYPE À FRICTION À SURFACE CONIQUE

Publication

EP 2878843 B1 20200603 (EN)

Application

EP 13822181 A 20130613

Priority

  • CN 201210263358 A 20120727
  • CN 2013077149 W 20130613

Abstract (en)

[origin: EP2878843A1] Disclosed is a conical surface friction type overrunning clutch, the clutch being regarded as a basic mechanical transmission part. A first intermediate ring (3) and a second intermediate ring (4) are provided between an inner ring (1) and an outer ring (2) both able to rotate about a common axis such that force boosting transmission mechanisms are connected respectively to conical surface friction pairs in a matching manner. All of the force boosting transmission mechanisms and the conical surface friction pairs operate within a scope of parameters in which they would not lock themselves, the force boosting transmission mechanisms being in a constant meshing state, and an initial press is exerted on the conical surface friction pairs via an elastic preloading part (7) or a magnetic member. When there are tangential external component forces in different directions between the inner ring and the outer ring, the conical surface friction pairs are slidably rotating or stay in a stationary state with the effect of the force boosting transmission mechanism such that the functions of overrunning and self-locking in the overrunning clutch are realized. The present invention is also able to realize the function of preventing the overrunning clutch from overloading and slipping by means of adjusting the design parameters.

IPC 8 full level

F16D 41/06 (2006.01); F16D 41/22 (2006.01)

CPC (source: EP KR RU US)

F16D 41/06 (2013.01 - KR RU US); F16D 41/061 (2013.01 - EP US); F16D 41/22 (2013.01 - EP US); F16D 13/28 (2013.01 - US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2878843 A1 20150603; EP 2878843 A4 20161026; EP 2878843 B1 20200603; BR 112015001338 A2 20170704; CA 2878985 A1 20140130; CA 2878985 C 20170221; CN 102758860 A 20121031; CN 102758860 B 20150415; CN 104838164 A 20150812; CN 104838164 B 20170620; IN 28MUN2015 A 20151016; JP 2015522780 A 20150806; JP 5960359 B2 20160802; KR 101766100 B1 20170807; KR 20150038161 A 20150408; RU 2015105759 A 20160920; RU 2602848 C2 20161120; US 10480595 B2 20191119; US 2015204394 A1 20150723; WO 2014015719 A1 20140130

DOCDB simple family (application)

EP 13822181 A 20130613; BR 112015001338 A 20130613; CA 2878985 A 20130613; CN 201210263358 A 20120727; CN 2013077149 W 20130613; CN 201380033367 A 20130613; IN 28MUN2015 A 20150105; JP 2015523384 A 20130613; KR 20157004333 A 20130613; RU 2015105759 A 20130613; US 201314413546 A 20130613